Wellington



(Model.)

w. P. DBLLOPP.

Detachable Button.

Patented March 1,1881.

Inventor.

[JV-PETERS. PHOTO-UTNQGRAPHER, WASHINGTON D C.

NITE STATES PATENT FFICE.

WELLINGTON I. DOLLOFF, OF PROVIDENCE, RHODE ISLAND.

DETACHABLE BUTTON.

SPECIFICATION forming part of Letters Patent No. 238,368, dated March 1,1881.

' 'Application filed September 24,1880. (ModeL) To all whom it mayconcern:

Be it known that I, WELLINGTON P. DoL- LOFF, of Providence, in the Stateof Rhode Island, have invented an Improvement in Detachable Buttons, ofwhich the following is a specification.

My invention relates to an improvement in buttons of the class whereinthe button is provided with a shoe or locking-bar attached to an axiswhich is capable of rotation, for the purpose of bringing the shoe orlocking-bar in line with the fixed post in which the said axis turns, itbeing ordinarily held at right angles to such post by the pressure of aspring.

My invention consists in providing the end of the movable axis with apinion, which acts in connection with cogged pushers, forming the meansby which the before-mentioned motion of the locking-bar is accomplished.

Figure 1 represents an under view and partial section of my button,taken 011 the line mm of Fig. 2. Fig.2 represents an elevation andpartial section taken in the offset-line w :20 of Fig. 1. Fig. 3represents a view of the under side of a similar button. Fig. 4represents a side elevation, partly in section.

In the accompanying drawings, A is the front plate of the button, whichis struck up with a rim, B. At the back of the plate A, within the rimB, is placed the plate 0, to the center of which is attached a fixedpost, D, made elongated and provided upon its outer end with a flange,E, which serves to properly retain the post D within a button-hole.

The thin locking-bar F is pivoted to the post D by means of an upright,G, passing down- Ward through the vertical axis of the post D. On thelower end of the upright Gris a pinion, M, provided with teeth, as shownin the drawings, and this pinion engages with teeth on the pushers J,which form a rack, by means of which the upright G is given an axialmotion. The outer end of the pusher passes through a hole made in therim B, and the inner end is held in place by means of an ear, L,attached to the plate 0. The tension of the spring K, operating throughthe pushers J J against the bar H, tends to hold the locking-bar F atright angles to the longitudinal direction of the fixed post, as shown;but upon pressing the ends of the pushers inward the lockingbar F willbe thrown around so as to lie in the same direction as the flange E atthe end of the fixed post D. The shoe of the button may then be readilypassed through the button-hole, when, by simply removing the pressurefrom the pushers, the locking-bar F will be made to resume its normalposition at right angles to the longitudinal direction of the fixedpost, thus serving to effectually secure the button within thebutton-hole, from which it may be readily removed at any time by simplypressing upon the ends of the pushers.

In Figs. 1 and 2 the pushers are arranged in the same longitudinaldirection with the fixed post; but in Figs. 3 and 4 the pushers arearranged at right angles to the post, which in this case serves to forma guide to the inner ends of the pushers. The free ends of the spring Kma be made to pass through ahole in the pusher, or may rest against thelugs N N, turned up from the plane of the pushers,

I claim as my invention- In a button, the upright Gr, having thelocking-bar F at one end and the pinion M at the other, in combinationwith pushers J, adapted to engage with said pinion, and spring K.

WELLINGTON P. DOLLOFF.

Witnesses:

ISAAC LINDSLEY, JOSEPH J. SoHoLrIELD.

